| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Soja. |
|
Data corrente: |
10/11/2004 |
|
Data da última atualização: |
10/11/2004 |
|
Autoria: |
PIPOLO, A. E.; SINCLAIR, T. R.; CAMARA, G. M. S. |
|
Título: |
Protein and oil concentration of soybean seed cultured in vitro using nutrient solutions of differing glutamine concentration. |
|
Ano de publicação: |
2004 |
|
Fonte/Imprenta: |
Annals of Applied Biology, Cambridge, v. 144, n.2, p. 223-227, 2004. |
|
Idioma: |
Inglês |
|
Conteúdo: |
Oil and protein are the most valuable components of soybean seed. Evidence indicates that growth and composition of soybean seed are controlled by supplies of carbon and nitrogen provided by the maternal plant to the seed, but it is difficult experimentally to control and quantify the precise amount of carbon and nitrogen provided to the seed by the whole plant. To examine whether oil and protein concentrations are affected by the supply of nitrogen to the seed, immature soybean seeds (Glycine max cv. Williams 82) were grown in vitro in nutrient solutions containing 20, 40, 60 or 80 mM of glutamine. The seeds were incubated in Erlenmeyer flasks for 8 days at 25°C. The rate of dry matter accumulation changed from 7.2 to 8.3 mg seed[sup-1] day[sup-1] as the glutamine concentration increased from 20 to 80 mM but the differences were not significant (P > 0.05). Seed protein concentration increased as glutamine concentration increased from 294 mg g[sup-1] at 20 mM glutamine to as high as 445 mg g[sup-1] at 80 mM glutamine. Typical in vivo protein concentration of mature soybean seeds is about 400 mg g[sup-1]. Oil and protein concentrations were negatively correlated (r[sup2] = 0.44), which indicates that oil and protein synthesis are interrelated. Protein synthesis was favoured over oil synthesis when nitrogen became more abundant. The seeds used in this study clearly demonstrated a capacity to respond to nitrogen availability with changes in seed protein concentration. |
|
Categoria do assunto: |
-- |
|
URL: |
https://vnweb.hwwilsonweb.com/hww/shared/shared_main.jhtml;jsessionid=4TADKJFID3CNRQA3DIMSFGOADUNGIIV0?_requestid=45941
|
|
Marc: |
LEADER 01975naa a2200145 a 4500
001 1467521
005 2004-11-10
008 2004 bl --- 0-- u #d
100 1 $aPIPOLO, A. E.
245 $aProtein and oil concentration of soybean seed cultured in vitro using nutrient solutions of differing glutamine concentration.
260 $c2004
520 $aOil and protein are the most valuable components of soybean seed. Evidence indicates that growth and composition of soybean seed are controlled by supplies of carbon and nitrogen provided by the maternal plant to the seed, but it is difficult experimentally to control and quantify the precise amount of carbon and nitrogen provided to the seed by the whole plant. To examine whether oil and protein concentrations are affected by the supply of nitrogen to the seed, immature soybean seeds (Glycine max cv. Williams 82) were grown in vitro in nutrient solutions containing 20, 40, 60 or 80 mM of glutamine. The seeds were incubated in Erlenmeyer flasks for 8 days at 25°C. The rate of dry matter accumulation changed from 7.2 to 8.3 mg seed[sup-1] day[sup-1] as the glutamine concentration increased from 20 to 80 mM but the differences were not significant (P > 0.05). Seed protein concentration increased as glutamine concentration increased from 294 mg g[sup-1] at 20 mM glutamine to as high as 445 mg g[sup-1] at 80 mM glutamine. Typical in vivo protein concentration of mature soybean seeds is about 400 mg g[sup-1]. Oil and protein concentrations were negatively correlated (r[sup2] = 0.44), which indicates that oil and protein synthesis are interrelated. Protein synthesis was favoured over oil synthesis when nitrogen became more abundant. The seeds used in this study clearly demonstrated a capacity to respond to nitrogen availability with changes in seed protein concentration.
700 1 $aSINCLAIR, T. R.
700 1 $aCAMARA, G. M. S.
773 $tAnnals of Applied Biology, Cambridge$gv. 144, n.2, p. 223-227, 2004.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Soja (CNPSO) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Arroz e Feijão. |
|
Data corrente: |
30/09/2021 |
|
Data da última atualização: |
30/09/2021 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 2 |
|
Autoria: |
WIESE, L.; WOLLENBERG, E.; ALCÁNTARA-SHIVAPATHAMC; RICHARDS, M.; SHELTON, S.; HÖNLE, S. E.; HEIDECKE, C.; MADARI, B. E.; CHENU, C. |
|
Afiliação: |
LIESL WIESE, INTERNATIONAL AGRICULTURAL SCIENCE AND POLICY CONSULTANT, South Africa; EVA WOLLENBERG, CGIAR; VIRIDIANA ALCÁNTARA-SHIVAPATHAMC, FEDERAL OFFICE FOR AGRICULTURE AND FOOD, Germany; MERYL RICHARDS, CERES; SADIE SHELTON, CGIAR; SUSANNA ESTHER HÖNLE, THÜNEN INSTITUTE; CLAUDIA HEIDECKE, THÜNEN INSTITUTE; BEATA EMOKE MADARI, CNPAF; CLAIRE CHENU, AgroParis Tech. |
|
Título: |
Countries' commitments to soil organic carbon in nationally determined contributions. |
|
Ano de publicação: |
2021 |
|
Fonte/Imprenta: |
Climate Policy, 2021. |
|
ISSN: |
1469-3062 |
|
DOI: |
https://doi.org/10.1080/14693062.2021.1969883 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Soil carbon is the major active pool of terrestrial carbon, and as such, soil organic carbon (SOC) targets, policies and measures will be pivotal to achieving global climate targets. SOC sequestration may reduce the net annual greenhouse gas emissions from Agriculture, Forestry and Other Land Use by between 3% and 71%, while simultaneously supporting various ecosystem services. Accurate SOC accounting and monitoring, however, is constrained by various technical challenges related to indicators, rates of SOC change, measuring the impact of management practices on SOC, and the long-term persistence of sequestered SOC. We assessed countries' pledges to the Paris Agreement for SOC in agriculture to better understand the level, transparency, and specificity of commitments. Reviewing 184 countries' initial Nationally Determined Contributions (NDCs), we considered whether SOC was included, what was pledged, the level of ambition promised and the specificity of mitigation targets. Twenty-eight countries referred to SOC in their NDCs, citing quantified or unquantified mitigation targets, national policies or programs, and actions and measures to be implemented in agricultural lands (14), peatlands (6) or wetlands (14). Countries' reasons for not including SOC in NDCs included the need to prioritize goals of sustainable development and food security above climate mitigation, a lack of incentives for farmers to improve management practices, and the difficulty of accurately monitoring changes in SOC. Including SOC targets in NDCs can improve NDCs' comprehensiveness and transparency to track and compare policy progress across NDCs; it can also leverage SOC-related climate finance, technical support, and capacity building. MenosSoil carbon is the major active pool of terrestrial carbon, and as such, soil organic carbon (SOC) targets, policies and measures will be pivotal to achieving global climate targets. SOC sequestration may reduce the net annual greenhouse gas emissions from Agriculture, Forestry and Other Land Use by between 3% and 71%, while simultaneously supporting various ecosystem services. Accurate SOC accounting and monitoring, however, is constrained by various technical challenges related to indicators, rates of SOC change, measuring the impact of management practices on SOC, and the long-term persistence of sequestered SOC. We assessed countries' pledges to the Paris Agreement for SOC in agriculture to better understand the level, transparency, and specificity of commitments. Reviewing 184 countries' initial Nationally Determined Contributions (NDCs), we considered whether SOC was included, what was pledged, the level of ambition promised and the specificity of mitigation targets. Twenty-eight countries referred to SOC in their NDCs, citing quantified or unquantified mitigation targets, national policies or programs, and actions and measures to be implemented in agricultural lands (14), peatlands (6) or wetlands (14). Countries' reasons for not including SOC in NDCs included the need to prioritize goals of sustainable development and food security above climate mitigation, a lack of incentives for farmers to improve management practices, and the difficulty of accurately monitoring c... Mostrar Tudo |
|
Palavras-Chave: |
Paris agreement; Policy. |
|
Thesagro: |
Carbono; Mudança Climática; Solo. |
|
Thesaurus NAL: |
Agriculture; Climate change; National Environmental Policy Act; Soil organic carbon. |
|
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
|
Marc: |
LEADER 02704naa a2200349 a 4500
001 2134919
005 2021-09-30
008 2021 bl uuuu u00u1 u #d
022 $a1469-3062
024 7 $ahttps://doi.org/10.1080/14693062.2021.1969883$2DOI
100 1 $aWIESE, L.
245 $aCountries' commitments to soil organic carbon in nationally determined contributions.$h[electronic resource]
260 $c2021
520 $aSoil carbon is the major active pool of terrestrial carbon, and as such, soil organic carbon (SOC) targets, policies and measures will be pivotal to achieving global climate targets. SOC sequestration may reduce the net annual greenhouse gas emissions from Agriculture, Forestry and Other Land Use by between 3% and 71%, while simultaneously supporting various ecosystem services. Accurate SOC accounting and monitoring, however, is constrained by various technical challenges related to indicators, rates of SOC change, measuring the impact of management practices on SOC, and the long-term persistence of sequestered SOC. We assessed countries' pledges to the Paris Agreement for SOC in agriculture to better understand the level, transparency, and specificity of commitments. Reviewing 184 countries' initial Nationally Determined Contributions (NDCs), we considered whether SOC was included, what was pledged, the level of ambition promised and the specificity of mitigation targets. Twenty-eight countries referred to SOC in their NDCs, citing quantified or unquantified mitigation targets, national policies or programs, and actions and measures to be implemented in agricultural lands (14), peatlands (6) or wetlands (14). Countries' reasons for not including SOC in NDCs included the need to prioritize goals of sustainable development and food security above climate mitigation, a lack of incentives for farmers to improve management practices, and the difficulty of accurately monitoring changes in SOC. Including SOC targets in NDCs can improve NDCs' comprehensiveness and transparency to track and compare policy progress across NDCs; it can also leverage SOC-related climate finance, technical support, and capacity building.
650 $aAgriculture
650 $aClimate change
650 $aNational Environmental Policy Act
650 $aSoil organic carbon
650 $aCarbono
650 $aMudança Climática
650 $aSolo
653 $aParis agreement
653 $aPolicy
700 1 $aWOLLENBERG, E.
700 1 $aALCÁNTARA-SHIVAPATHAMC
700 1 $aRICHARDS, M.
700 1 $aSHELTON, S.
700 1 $aHÖNLE, S. E.
700 1 $aHEIDECKE, C.
700 1 $aMADARI, B. E.
700 1 $aCHENU, C.
773 $tClimate Policy, 2021.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
